/*
 * Copyright 2001-2005 (C) MetaStuff, Ltd. All Rights Reserved.
 *
 * This software is open source.
 * See the bottom of this file for the licence.
 */

package org.dom4j.swing;

import java.util.List;

import javax.swing.table.AbstractTableModel;

import org.dom4j.Document;
import org.dom4j.Element;
import org.dom4j.XPath;

/**
 * <p> <code>XMLTableDefinition</code> repro. </p>
 * 
 * @author <a href="mailto:jstrachan@apache.org">James Strachan </a>
 * @version $Revision: 1.2 $
 */
public class XMLTableModel extends AbstractTableModel
{
   /** Holds value of property definition. */
   private XMLTableDefinition definition;

   /** Holds value of property source. */
   private Object source;

   /** The rows evaluated from the row XPath expression */
   private List rows;

   /**
    * Creates a TableModel from an XML table definition document and an XML
    * source
    * 
    * @param tableDefinition DOCUMENT ME!
    * @param source DOCUMENT ME!
    */
   public XMLTableModel(Element tableDefinition, Object source)
   {
      this(XMLTableDefinition.load(tableDefinition), source);
   }

   /**
    * Creates a TableModel from an XML table definition document and an XML
    * source
    * 
    * @param tableDefinition DOCUMENT ME!
    * @param source DOCUMENT ME!
    */
   public XMLTableModel(Document tableDefinition, Object source)
   {
      this(XMLTableDefinition.load(tableDefinition), source);
   }

   public XMLTableModel(XMLTableDefinition definition, Object source)
   {
      this.definition = definition;
      this.source = source;
   }

   public Object getRowValue(int rowIndex)
   {
      return getRows().get(rowIndex);
   }

   public List getRows()
   {
      if(rows == null)
      {
         rows = definition.getRowXPath().selectNodes(source);
      }

      return rows;
   }

   // TableModel interface
   // -------------------------------------------------------------------------
   public Class getColumnClass(int columnIndex)
   {
      return definition.getColumnClass(columnIndex);
   }

   public int getColumnCount()
   {
      return definition.getColumnCount();
   }

   public String getColumnName(int columnIndex)
   {
      XPath xpath = definition.getColumnNameXPath(columnIndex);

      if(xpath != null)
      {
         System.out.println("Evaluating column xpath: " + xpath + " value: "
            + xpath.valueOf(source));

         return xpath.valueOf(source);
      }

      return definition.getColumnName(columnIndex);
   }

   public Object getValueAt(int rowIndex, int columnIndex)
   {
      try
      {
         Object row = getRowValue(rowIndex);

         return definition.getValueAt(row, columnIndex);
      }
      catch(Exception e)
      {
         handleException(e);

         return null;
      }
   }

   public int getRowCount()
   {
      return getRows().size();
   }

   // Properties
   // -------------------------------------------------------------------------

   /**
    * Getter for property definition.
    * 
    * @return Value of property definition.
    */
   public XMLTableDefinition getDefinition()
   {
      return definition;
   }

   /**
    * Setter for property definition.
    * 
    * @param definition New value of property definition.
    */
   public void setDefinition(XMLTableDefinition definition)
   {
      this.definition = definition;
   }

   /**
    * Getter for the XML source, which is usually a Node or List of nodes.
    * 
    * @return Value of property source.
    */
   public Object getSource()
   {
      return source;
   }

   /**
    * Setter for the XML source, which is usually a Node or List of nodes.
    * 
    * @param source New value of property source.
    */
   public void setSource(Object source)
   {
      this.source = source;
      this.rows = null;
   }

   // Implementation methods
   // -------------------------------------------------------------------------
   protected void handleException(Exception e)
   {
      // #### should use jakarta commons-logging
      System.out.println("Caught: " + e);
   }
}

/*
 * Redistribution and use of this software and associated documentation
 * ("Software"), with or without modification, are permitted provided that the
 * following conditions are met:
 * 
 * 1. Redistributions of source code must retain copyright statements and
 * notices. Redistributions must also contain a copy of this document.
 * 
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 * 
 * 3. The name "DOM4J" must not be used to endorse or promote products derived
 * from this Software without prior written permission of MetaStuff, Ltd. For
 * written permission, please contact dom4j-info@metastuff.com.
 * 
 * 4. Products derived from this Software may not be called "DOM4J" nor may
 * "DOM4J" appear in their names without prior written permission of MetaStuff,
 * Ltd. DOM4J is a registered trademark of MetaStuff, Ltd.
 * 
 * 5. Due credit should be given to the DOM4J Project - http://www.dom4j.org
 * 
 * THIS SOFTWARE IS PROVIDED BY METASTUFF, LTD. AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL METASTUFF, LTD. OR ITS CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 * 
 * Copyright 2001-2005 (C) MetaStuff, Ltd. All Rights Reserved.
 */
